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What is the EKM-Switch120?

Modified on: Fri, 25 Sep, 2015 at 2:09 PM

The EKM-Switch120 is a normally open switch (no electricity can pass through the 120V portion of the unit). When you apply a low DC voltage to the control ports (ports 1 and 2) the switch closes and the 120 volts becomes energized.On our website here: EKM-Switch120Port 3 is ground from your 120 volt AC system — you do not need to use this.Port 1 is low voltage Positive. Port 2 is low voltage Negative (or ground)To close the switch you will apply from 3V DC to 12V DC between port 1 and port 2. To open the switch you will stop applying 12VDC between port 1 and port 2.